Improvement in tenoning-machines



UNITED yS'I'Ariiis PATENT Ormea LYMAN-GOULD, OF NORWICH, CONNECTICUT.

IMPROVEMENTN TENoNlNG-MACHINES.

Specicationforming part of Letters Patent No. 112,444, dated March 7, 1871.

To all Vwhom t may concern Be it known that I, LYMAN GOULD, of Nor- "wich, `in the county of New `London and State j of Connecticut, have invented a new and Imi proved Tenoning-llachiney and I do hereby declare that the following is a full, clear, and

exactdescription thereof, which will enable `others skilled in the art to make and use the l same, reference beingh'ad to the accompany- "ing drawing, forming partof this specifica- ,i tion.

Figure l is a front View;` Fig.`2, a sectionu on the line w mi and Fig. 3 is a section on the A is the frame, upon which the operating `parts are supported; B, the standards or f frame, on which the yokes C C1, for thesup-` y port of cutter-heads D-D, are mounted to l i work vertically. E is a tubularscrew, screw.

ing through `clamp-nut L andconnected 4to `g j `yoke C, and through which the screw F, which screws in a clamp-nut, J, on yoke C1, passes,

i `and is operated by the crank Gto raise the f .i cutter-head D above orbelow the carriage H,

i il .on which the stuli' is placed to be worked as may be required.

The clamp-nut J has a check thumb-screw,

t I, which allows the screw F1 to work freely in' i the nut J, to adjust the cutter-head in posi-y 1 tion orclamp the'nuttightly to the screw 3% j when adjusted.

The placing of the upper head, 1), in, posi-` l tion is done by the tubular screw E, working j Q in a clamp-nut, L, at the top, the lower end i working in a bearing on yoke C, and kept in i j position therein by meansof two collarson jsaid screw E, which is operated by the handwheel K. This screw E at the same time carries the screw F by its frictiomand it being the same pitch in the thread as the screw E will work in clamp-nut'J, and allow the cutter-head D' to remain stationary while D is moved.

To adjust both cntt-ergheads up or down at the same time after the distance between them has been obtained, I make the screw F fast by checking it in the nut J by the thumb- Y screw I, so that it will not turn by the friction with said screw E, and then turn the handwheel K, by which both heads will move alike Y at the same time up or`down, as may be required. j

When the heads are in'position for work, I

check .the screw E by means of clamp-nut L and thumb-screw in, and the whole is made fast.

What I claim as my invention, and desire to secure by Letters Patent, is-

The combination ofdevices for adjusting tenoningmachine cutter-heads, consisting of a screw, F, with a hand-crank, working within a tubular adjusting-screw, E, and clamp-nut J, the latter on the lower cutter-head stock, and screw E, working in the clamp-nut L on the frame, and the bearing C2 on the upper` cutter-head support, all for the purpose of operating either head independent of the other, or both together, substantially in the manner described.

LYMAN GOULD.

Witnesses:

` f T. B. MosHER,

GEO. W. MABEE. 

